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Subject: Re: chess computer ratings

Author: Robert Hyatt

Date: 19:42:09 09/23/01

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On September 23, 2001 at 10:30:43, Sonja Tiede wrote:

>On September 23, 2001 at 10:21:44, Robert Hyatt wrote:
>
>>On September 23, 2001 at 09:04:34, gregory j capace wrote:
>>
>>>If you have a faster processor, how much strength does this dd to the program ?
>>>Does Fritz 6 run any stronger on my 566 mghz, versus a 450 nghz. , like the
>>>rating says. How strong would it be on a 1.2 mghz. computer ?
>>
>>
>>Against humans, there is no real data.  If you are talking about taking a
>>program on an XXX megahertz machine, and playing it against a program on
>>a 2*XXX megahertz machine, then the faster machine will be rated about 60
>>points higher, using the typical Elo formula.  I don't think that +60 will
>>be true for games vs humans, however.  It might be 1/2 of that or even less.
>
>
>Take 2 programs, one with 2000 SSDF ELo and one with 2600 SSDF Elo,
>assume the 2000 value is true against humans.
>Do you really think the other programm has a human-strength of less than 2300 ,
>since all SSDF elo-values are based on comp-comp matches ?


It is certainly possible.  But more likely, take a 2500 SSDF program and a
2650 SSDF program and play them against humans, it is likely they will produce
similar results...



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